[#node-CBlockIndexHeightOnlyComparator-operator_call]
= xref:node.adoc[node]::xref:node/CBlockIndexHeightOnlyComparator.adoc[CBlockIndexHeightOnlyComparator]::operator()
:relfileprefix: ../../
:mrdocs:

Order two block indices by height only.

== Synopsis

Declared in `<node/blockstorage.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator()(
    xref:CBlockIndex.adoc[CBlockIndex] const* pa,
    xref:CBlockIndex.adoc[CBlockIndex] const* pb) const;
----

== Return Value

True if `pa` has a lower height than `pb.`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pa*
| The first block index to compare.
| *pb*
| The second block index to compare.
|===


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